Home / 85,514.25-118,009.67-47,788.50

Finding the Fourth Proportional to 85,514.25, 118,009.67 and 47,788.50

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Solution

The fourth proportional to 85,514.25, 118,009.67 and 47,788.50 is: 65,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514.25 : 118,009.67 = 47,788.50 : x
  2. Step 2: Convert to fraction form
    85,514.25/118,009.67 = 47,788.50/x
  3. Step 3: Cross multiply
    85,514.25x = 118,009.67 × 47,788.50
  4. Step 4: Simplify right side
    85,514.25x = 5,639,504,875.85
  5. Step 5: Solve for x
    x = 5,639,504,875.85/85,514.25
  6. Step 6: Final answer
    x = 65,948.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.